Parallel rays converge in the focal plane or diverge from the focal plane, independent of the angle they make with the optic axis. If you already have thick lenses, you can’t make your current glasses thinner. You’ll need to get a new couple of glasses with high index lenses to have thinner lenses. Finally, lenses…
Lenses created from Trivex provide 100% UV protection from both UV-A and UV-B radiation. Trivex has been shown to be resistant to household products like bleach, salt water, window glass cleaner, sun tan cream, and nail polish remover. But you can find differences that may make Trivex a preferable option. Digital lenses that have been…
The glare from the lenses can be cosmetically unappealing. Because of this most high index lenses come with an anti-reflective coating as a typical option. High index plastic is thinner and more lightweight, and will often have more options in terms of lens colors and sizes. Trivex is slightly more optically clear and impact resistant…
If you discover that the only real constant is that you are wearing your eyeglasses, you almost certainly have glasses with the incorrect prescription. Your eye prescription itself, as you likely know, is summarized in a variety of letters, numbers, and symbols. These characters represent different characteristics of one’s prescription. When you visited your optometrist…
I’ve a passion for progressive lens designs which led to a patent in 2014. SPHCYLAXISADDPRISMBASER-6,00-2,0002,009180L-7,00-1,501702,0090This person here has high myopia in combination with astigmatism and he needs a big prism as a way to fuse both images together. In plenty of cases, people the prisms can be split up which thins the lenses significantly. Have…
For these occupations welding helmets and goggles ought to be worn over the patient’s safety eyewear. OLT are regular plastic lenses we out source from another lens caster. All styles of lenses that people have in the 1.55 material are coated. A backside coating is not required to tint these lenses but is recommended for…